{"title":"基于cad的有理函数极限计算方法比较","authors":"A. Strzebonski","doi":"10.1145/3208976.3208982","DOIUrl":null,"url":null,"abstract":"We present five methods for computation of limits of real multivariate rational functions. The methods do not require any assumptions about the rational function and compute the lower limit and the upper limit. All methods are based on the cylindrical algebraic decomposition (CAD) algorithm, but use different formulations of the problem. We give an empirical comparison of the methods on a large set of examples.","PeriodicalId":105762,"journal":{"name":"Proceedings of the 2018 ACM International Symposium on Symbolic and Algebraic Computation","volume":"42 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Comparison of CAD-based Methods for Computation of Rational Function Limits\",\"authors\":\"A. Strzebonski\",\"doi\":\"10.1145/3208976.3208982\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We present five methods for computation of limits of real multivariate rational functions. The methods do not require any assumptions about the rational function and compute the lower limit and the upper limit. All methods are based on the cylindrical algebraic decomposition (CAD) algorithm, but use different formulations of the problem. We give an empirical comparison of the methods on a large set of examples.\",\"PeriodicalId\":105762,\"journal\":{\"name\":\"Proceedings of the 2018 ACM International Symposium on Symbolic and Algebraic Computation\",\"volume\":\"42 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-07-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the 2018 ACM International Symposium on Symbolic and Algebraic Computation\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1145/3208976.3208982\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 2018 ACM International Symposium on Symbolic and Algebraic Computation","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/3208976.3208982","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Comparison of CAD-based Methods for Computation of Rational Function Limits
We present five methods for computation of limits of real multivariate rational functions. The methods do not require any assumptions about the rational function and compute the lower limit and the upper limit. All methods are based on the cylindrical algebraic decomposition (CAD) algorithm, but use different formulations of the problem. We give an empirical comparison of the methods on a large set of examples.